A free program for Android, by Buddies Tech.

Walkie Talkie Wifi Calling is a new way of making calls with a friend. You can use the app as a walkie-talkie. With this app, you can talk to your friends and family directly from your Android device. The app is useful for those who have no internet access but want to be able to talk to their friends and family. It also allows you to make calls with your friends and family. You can talk to them directly and freely.

How to Use:

When you start the app, you need to allow the required permissions. Then, you need to select an avatar and enter your name.